precautions before operation of electric chainsaw:1. safety shoes must be worn when working.2, do not wear loose, open clothes and shorts, do not wear accessories, such as ties, bracele...

operation method of electric chainsaw1, when the processing of the original belt distance conveyor 1. no operation is allowed within 5m.2. before switching on the power supply, the chai...

how to maintain the electric pick, what kind of oil it uses.i. regular replacement and addition of professional grease:the hammer/pick can work normally for 60 hours (it depends on diff...

since reform and opening up over the past 20 years, a lot of buildings have to dismantle, road, municipal underground pipeline to upgrade, demolition hammer is only in recent years a la...